Stop-motion for looms.



W. H. BAKER. STOP MOTION FOR LOOMS. APPLICATION FILED MAR. 10, 1913.

Patented ov. 11, 1913.

rrnn STATES PATENT Torsion.

WILLIAM HENRY BAKER, OF MONTREAL, QUEBEC, CANADA.

STOP-MOTIQLN FOR moons.

; "Specification of Lette-wPatent.

Application filedlliallflhl ti fil3. Serial It -7. 1314- To aliant/70m timely concern:

Be it known that 1, WILLIAM H. Barren,

aicitizen of-the United States, residing in Montreal, in :the Province :of Quebec, Canada, haveinventedvcertain new and use,

ful Improvements in Stop-Motions Looms, iQ'f'aYVlllQh the following a spec1- for" ficetion, reference being had to e M60111:

panying drawings, ior ning part thereof,

This llLVBIlhlOIl has reference to unprovements in :thatclass of Warp stop m t ns for looms having relatively slidable spermbers OIlBzOf which is wadaptedto be actuated during :the :normal operation of the loom and :is .adaptedzto ;be arrested, at the 1 occurrence of a breaker a-iiault in the warp, by.

drop devices normally sustained out of arresting engagement 7 with said members and. the invention consists in the jIlO VQljlIlQflDS for supporting said relatively slidable members and :for engagingthe -guidememher thereof. OILGJObLjGClZQOfithG inventionisrto improve;

the construction of the guide support ng;

and holding device.

Another object of the invention is to so construct-aihridgeipiece, for the guide members, :having a rod i engaging collar that the warp threads cannotlbe canghthetween said collar and thebriclge and broken.

Other objects ofthe invention will appear from the following description.

The invention consists in :the .novel construction of the support "for the guide bar or member.

The invention also consists in-the novel construction of the bridge.

The invention still further consists in such other novel features of construction and combination of parts :as shall therein after he more fully described .and pointed out in the claims.

Figure :1, represents a @view in elevation of parts of a warp stopimotionillustrating his invention removed from a loom, portions of the same being shown in section. Fig. 2, represents a slde View, on enlarged scale,

of one of the guide bar supports, showmg one of the slide bars engaged therewith. Fig. 3, represents a plan View of the same.

Eig. e, represents a sectional view taken on line l- Fig. 1.

Similar characters of reference designate corresponding parts throughout.

As shown in the drawings in its preferred form 5 indicates a portion of one of the IDGHllDGlS or angle rods adapted to sustain the warpstop motion in position in a loom. This rod 5 receives the bore ofthe stirrup member -6 which has the extension 7 fur- .nished with the stud S on which the solid vibrator 9 is mounted to swing. The stir- .rup member 6 is preferably madeofeast metal and has a depending-arm furnished with the horizontal stirrup bar 10 leaving the guide bar seats 11, 11 form d therein. In oiderito holdithe endsro'f the guide'bars from longitudinal nowen ent in said seats I provide the-stirrup bar 10 with theesteel jho-lder strip or bar 12 which extends across the opensides-of the-seats 110, .10 and-has the inturned ends 13, 13 which, in thecasting other l0.,-arei11 uded i the ody of said bar. In oi-derto prevent the lifting of the .ends of the guide bars .iro nsaid seats 11,,

11 I provide the bar 10 with the keeper 14 which bears at llISllOWGl end against theside of bar 10 and at its upper cndextends over the open upper ends of said seats 11, 11. This keeper is supported in place by the spring wh ch isnarricd onscrew -16,.se-

cured inbar 10, which spring bears against thelrceper asshown in Fig. 1 oflthe drawlngs.

Supported by the Sti p lbals W 1 11116 the guide bars 17, 17 which have longitudinal grooves in their .npper edges, which edges. are serrat c hav the teeth 18, l8, and the lower edgesof said guide'bars near their ends havethe notches 19 .19 which are engaged With the holder strip 12 while the ends of said guidebars 17, Hare received by rthe seats ll, 11 i bar 10, Adjacent the ends of said guide bars are slots as 2.0,

through which the pins as 21ofihes1ide bars 22, 22 extend. These slide bars or strips 22, 22 have :the teeth 23, 23 in their upper edges and are slidable in "the grooves inatheupper edges of bars 117,, 17 duringthe The provision for vibrating or actuating said slide bars 122, 2.2 :is the vibrator 9 which is p otally mounted on the stud 8 of member 5 and has thedepending arm 25 having the lateral extension 26 which is furnished with m rits o upwardlysextendinglfingers 21,27 having transverse grooves 28, 28 in which .the pins 21 21 of the several slide bars 22, 22 are engaged. The vibrator 9 is operated in any manner now well known in this art from some movable part of the loom mechanism as, for instance, shown in Letters Patent of the United States, No. 1,026,941, granted to me May 21, 1912.

Provision is made for bracing the guide bars 17, 17 at a point intermediate the length of said bars, such provision comprises the center brace or bridge 29 which is formed of compressed fibrous non-abrasive material. This center brace has the vertical slots 30, 30 to receive the guide bars 17, 17 and is pivot-- ally mounted at one edge to swing on the usual warp support rod 31 while at the other edge said brace or bridge 29 has the hook 32 to engage the other, usual warp support rod 33. Said center brace is supported, during the operation of the loom, by the collar 34: which has the offset arm 35, fastened to said brace 29, and the set screw 36 extending through the wall of said collar to engage with the periphery of said warp support rod 31. Extending through a slot in said center brace 29 is the brace rod 37 which may swing downward with the center brace.

By the use of the offset arm 35, collar 34 is spaced from the center brace 29 sui'liciently that one or more warp threads may rest on or move over the rod 31 without catching between said collar 34: and said bridge or brace 29 and in hereafter referring to said 30* collar as spaced from said bridge or brace I mean to define a space suiiiciently large to freely accommodate one or more warp threads. By making the center brace or bridge 29 of indurated fiber I find that the members 17 and the warp threads passing adjacent thereto are subjected to less wear than if said brace or bridge was of metal.

Having thus described my invention 1 claim as new and desire to secure by Letters Patent.

1. A stop motion of the nature described comprising asupporting bar having a series of parallel seats and a holding bar extending transversely across the side openings of said seats, a series of guide bars seated in said seats and having notches engaged with said holding bar, and a keeper hingedly mounted on said supporting bar and adapted to hold said guide bars in engagement with said holding bar.

2. A stop motion of the nature described comprising a supporting bar having a se 'ies of parallel seats and a holding bar extending transversely across the side openings of said seats, and a series of guide bars seated in said seats and having notches engaged with said holding bar.

3. A stop motion of the nature described comprising a supporting bar formed of cast metal and having a series of seats and having a holding bar or strip of steel having inturned ends cast into the body of said supporting bar, and a series of guide bars seated in the seats of said supporting bar and engaged with said holding bar.

4. A stop motion of the nature described comprising a series of guide bars, a warp support rod, and a two piece center brace for said guide bars pivotally mounted on said warp support rod.

5. A stop motion of the nature described comprising a series of guide bars, a warp support rod, a brace for said guide bars pivotally mounted on said rod, and a collar mounted on said arm and having an offset arm secured to said brace whereby said collar is spaced from said brace.

6. A stop motion of the nature described comprising a series of guide bars, a warp support rod, a brace for said guide bars having slots to receive said bars, a collar embracing said rod and having an offset arm secured to said brace, and a set screw in said collar for engaging said rod.

7. A stop mot-ion of the nature described comprising a pair of warp support rods, a series of guide bars parallel with said rods, a fibrous brace for said guide bars having a metallic collar pivotally mounted on one of said warp supportrods and having a hook for engaging the other of said warp support rods, and means for securing said brace from movement.

8. A stop motion of the nature described comprising a pair of warp support rods, a series of guide bars, a brace for said guide bars "formed of indurated fiber pivotally mounted on one of said rods and having an extension for engaging theother of said rods, said brace having a series of spaced slots in which said guide bars are seated.

9. A stop motion of the nature described comprising a series of guide bars, a warp support rod, a non-metallic brace for said guide bars, a metal collar mounted on said warp support and having an offset arm secured to said brace whereby warp threads may freely move on said rod between said collar and said brace, and means carried by said collar for engaging said rod to prevent the rotation of said collar.

WILLIAM HENRY BAKER.

Witnesses J. iVooLLnY, J. E. LAPORTE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

